<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue Slot插槽</title>
</head>
<body>
<!--第一步，导入Vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
<div id='app'>
    <todo>
        <!--        :就是v-bind:的简写-->
        <todo-title slot="todo-title" :title="title"></todo-title>
        <todo-items slot="todo-items" v-for="(item,index) in todoItems"
                    :item="item" v-bind:aria-colindex="index" v-on:remove="removeItems(index)"
                    :key= "index"></todo-items>
    </todo>
</div>
<script>
    //slot:插槽
    Vue.component("todo", {
        template: '    <div>\n' +
            '        <slot name="todo-title"></slot>\n' +
            '        <ul>\n' +
            '            <slot name="todo-items"></slot>\n' +
            '        </ul>\n' +
            '    </div>'
    });
    Vue.component("todo-title", {
        props: ['title'],
        template: '<div>{{title}}</div>'
    });
    Vue.component("todo-items", {
        props: ['item','index'],
        //只能绑定当前组件的方法

        template: '<li>{{index}}---{{item}}<button @click="remove">删除</button></li>',
        methods: {
            remove: function (index) {
                //this.$emit 自定义事件分发
                this.$emit('remove',index);
            }
        }
    });

    var vm = new Vue({
        el: '#app',
        data: {
            title: "潇君学习系列",
            todoItems: ['潇君学Java', '潇君学前端', '潇君啥都学']
        },
        methods: {
            removeItems:function (index) {
                console.log("删除了"+this.todoItems[index]+"OK!");
                this.todoItems.splice(index,1);//从Index开始一次删除一个元素
            }
        }
    });
</script>
</body>
</html>